A group of TikTok content creators descended on the US Capitol Wednesday to protest against calls for a ban on the popular Chinese-owned video-sharing app, amid fears that it presents a national security threat. Lawmakers and government officials have complained that TikTok’s parent company ByteDance is able to pass users’ data to the government in Beijing and are calling for it to be removed from app stores unless it is sold to a US firm. Supporters argue that the platform is no more prone to data breaches than any other apps that collect personal information and that lawmakers should be...